function [15:0] get_coef;
input [7:0] index;
case (index)
0: get_coef = 0;
1: get_coef = 0;
2: get_coef = 2;
3: get_coef = 10;
4: get_coef = 18;
5: get_coef = 18;
6: get_coef = -1;
7: get_coef = -39;
8: get_coef = -83;
9: get_coef = -108;
10: get_coef = -85;
11: get_coef = 0;
12: get_coef = 127;
13: get_coef = 249;
14: get_coef = 296;
15: get_coef = 216;
16: get_coef = -1;
17: get_coef = -295;
18: get_coef = -552;
19: get_coef = -635;
20: get_coef = -450;
21: get_coef = 0;
22: get_coef = 587;
23: get_coef = 1085;
24: get_coef = 1240;
25: get_coef = 877;
26: get_coef = -1;
27: get_coef = -1164;
28: get_coef = -2191;
29: get_coef = -2579;
30: get_coef = -1908;
31: get_coef = 0;
32: get_coef = 2973;
33: get_coef = 6502;
34: get_coef = 9846;
35: get_coef = 12241;
36: get_coef = 13110;
37: get_coef = 12241;
38: get_coef = 9846;
39: get_coef = 6502;
40: get_coef = 2973;
41: get_coef = 0;
42: get_coef = -1908;
43: get_coef = -2579;
44: get_coef = -2191;
45: get_coef = -1164;
46: get_coef = -1;
47: get_coef = 877;
48: get_coef = 1240;
49: get_coef = 1085;
50: get_coef = 587;
51: get_coef = 0;
52: get_coef = -450;
53: get_coef = -635;
54: get_coef = -552;
55: get_coef = -295;
56: get_coef = -1;
57: get_coef = 216;
58: get_coef = 296;
59: get_coef = 249;
60: get_coef = 127;
61: get_coef = 0;
62: get_coef = -85;
63: get_coef = -108;
64: get_coef = -83;
65: get_coef = -39;
66: get_coef = -1;
67: get_coef = 18;
68: get_coef = 18;
69: get_coef = 10;
70: get_coef = 2;
71: get_coef = 0;
72: get_coef = 0;
default: get_coef = 0;
endcase
endfunction